5.8 help needed
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Senior User
Joined: Feb 2010
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5.8 help needed
I have a post in the 4x4 section, but thought it would be better served here. I am building a 1979 F250. The truck had a 360 in it when new. I went to 351 about 16 years ago. I ended up with a 97 donor F350 with a F.I. - Roller Tappets - # F4TE-AAS motor/trans and T-Case. The 5.8 is bad. Haven't opened it up yet. My question is should I rebuild and use this motor with the 97 FI or stay with the 1970is 351W?
The 5.8 can be turned by hand quite easily. Little or no compression.
Doug
The 5.8 can be turned by hand quite easily. Little or no compression.
Doug
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Joined: Jul 2002
Posts: 14,285
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From: Bend,OR
that 5.8 roller cam motor is very desireable. so i would say yes but i wouldnt use the efi from that 97 as its speed density efi. if you want efi get a mustang mass air complete harness and a9l or a9p ecu and you will have a setup that gives you more room for cam choices and other hope up add ons. you would still retain all of the efi hardware on that motor though so dont get rid of that stuff.
now just curious are you sure you installed a 351w and not a 351m as the 351m was standard motor in that 79 F250.
now just curious are you sure you installed a 351w and not a 351m as the 351m was standard motor in that 79 F250.
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Senior User
Joined: Feb 2010
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sure
Yes, it is a 351W. It is in the 73 that I am making into a 79 clone. I do have the 351m/400/c6/np205 from the 79 frame.
Thanks for the input. I will go with the build for the 5.8 and keep an eye out for the mustang parts.
Doug
Thanks for the input. I will go with the build for the 5.8 and keep an eye out for the mustang parts.
Doug
